TRIS Online Record

Printable View

Title	THE EFFECT OF MOLD SIZE AND MOLD MATERIAL ON COMPRESSIVE STRENGTH MEASUREMENT USING CONCRETE CYLINDERS
Accession No	00675521
Authors	Day, R L
Journal Title	Cement, Concrete and Aggregates Vol. 16 No. 2
Corp. Authors / Publisher	American Society for Testing and Materials
Publication Date	19941200
Description	p. 159-166; Figures(2); References(10); Tables(6)
Languages	English
Abstract	This article describes recent studies at the University of Calgary in which the influence of specimen size on the measured strength of plain and fly ash concretes were examined. Fourteen concretes were cast, with and without air entrainment and fly ash, using various sizes of cylindrical mold made from different materials. The cylindrical specimens were cured in the standard manner and tested for compressive strength, most often at an age of 28 days. The measured strengths of the specimens ranged from 30 to 50 MPa. The five types of molds included: 150-mm diameter cardboard and plastic molds, 100-mm diameter plastic molds, and 75-mm diameter cardboard and plastic molds. The effect of mold material and diameter on the magnitude of measured strength was also investigated, but no distinct trends were observed. Differences in observed strengths due to type and size of mold were influenced by the type of concrete tested and the initial storage procedure used during the first 24 hours of storage. Differences in 28-day strengths among specimens are reported, which can be traced most often to differences in moisture loss during the first 24 hours of storage.
TRT Terms	Compressive strength ; Concrete ; Concrete curing ; Forming ; Materials ; Size ; Statistical analysis ; Testing
Other Terms	Curing methods; Molds (Forming)
Subject Areas	H32 CEMENT AND CONCRETE; I32 Concrete
Availability	American Society for Testing and Materials Find a library where document is available Order Document: http://worldcat.org/oclc/3528769
TRIS Files	HRIS
Database	TRIS Online

TRIS is a bibliographic database funded by sponsors of the Transportation Research Board (TRB), primarily the state departments of transportation and selected federal transportation agencies. TRIS Online is hosted by the National Transportation Library under a cooperative agreement between the Bureau of Transportation Statistics and TRB.